package com.atguigu.cart.controller;

import com.atguigu.cart.interceptor.CartInterceptor;
import com.atguigu.cart.service.CartService;
import com.atguigu.cart.vo.Cart;
import com.atguigu.cart.vo.CartItem;
import com.atguigu.cart.vo.UserInfoTo;
import com.atguigu.common.constant.AuthServerConstant;
import com.atguigu.common.utils.R;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import java.util.List;
import java.util.concurrent.ExecutionException;

@Controller
public class CartController {
    @Autowired
    CartService cartService;

    @ResponseBody
    @GetMapping("/currentUserCartItems")
    public List<CartItem> getCurrentUserCartItems(){
       return cartService.getUserCartItems();
    }

    @GetMapping("/checkItem")
    public String checkItem(@RequestParam("skuId") Long skuId,
                            @RequestParam("check")Integer check){
        cartService.checkItem(skuId,check);
        return  "redirect:http://cart.gulimall.com/cart.html" ;
    }
    @GetMapping("/deleteItem")
    public String deleteItem(@RequestParam("skuId") Long skuId){
        cartService.deleteItem(skuId);
        return  "redirect:http://cart.gulimall.com/cart.html" ;
    }
    @GetMapping("/countItem")
    public String countItem(@RequestParam("skuId") Long skuId,
                            @RequestParam("num")Integer num){
        cartService.changeItemCount(skuId,num);
        return  "redirect:http://cart.gulimall.com/cart.html" ;
    }
    @GetMapping("/cart.html")
    public String cartListPage(Model model) throws ExecutionException, InterruptedException {
//        UserInfoTo userInfoTo = CartInterceptor.threadLocal.get();
//        System.out.println(userInfoTo);
        Cart cart = cartService.getCart();
        model.addAttribute("cart",cart);

        int cartSize = cartService.getCartSize();
        model.addAttribute("cartSize",cartSize);

        return "cartList";
    }
    @ResponseBody
    @GetMapping("/cartSize")
    public R cartSize(){
/*
       Cart cart = cartService.getCart();
        UserInfoTo userInfoTo = CartInterceptor.threadLocal.get();
        System.out.println(userInfoTo);
        */
//        System.out.println(cart.getItems().size());
        int cartSize = cartService.getCartSize();
        System.out.println(cartSize);
        return R.ok().put("cartSize",cartSize);
    }

    /**
     * 添加商品到购物车
     * RedirectAttributes ra
     *      ra.addFlashAttribute()将数据放在session里面可以在页面取出，但是只能取一次
     *      ra.addAttribute（"skuId",skuId）；将数据放在url后面
     *
     * @param skuId
     * @param num
     * @param ra
     * @return
     * @throws ExecutionException
     * @throws InterruptedException
     */
    @GetMapping("/addToCart")
    public String addToCart(@RequestParam("skuId") Long skuId,
                            @RequestParam("num") Integer num,
                            RedirectAttributes ra) throws ExecutionException, InterruptedException {
      cartService.addToCart(skuId,num);
//      model.addAttribute("skuId",skuId);
      ra.addAttribute("skuId",skuId);

        return  "redirect:http://cart.gulimall.com/addToCartSuccess.html" ;
    }

    /**
     * 跳转到成功页
     * @param skuId
     * @param model
     * @return
     */

    @GetMapping("/addToCartSuccess.html")
    public String addToCartSuccessPage(@RequestParam("skuId") Long skuId,Model model){
        CartItem item = cartService.getCartItem(skuId);
        model.addAttribute("item",item);
        return "success";
    }
}
